Island



(No Model.)

G. R. PHILLIPS. DRYING GYLINDER.

No. 543,051. Patented July 23, 1895.

[UNITED STATES PATENT OFFICE.

GEORGE E. PHILLIPS, OF PROVIDENCE, RHODE ISLAND.

DRYING-CYLINDER.

SPECIFICATION forming part of Letters Patent No. 543,051, dated July 23,1895.

Application filed June 11,1891. seen naseasssf on We 7 To aZZ whom itmay concern.-

Be it known that I, GEORGE E. PHILLIPS,

a citizen of the United States, residing at Providence, in the county ofProvidence and State of Rhode Island, have invented certain new anduseful Improvements in Drying- Cylinders; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same, reference being had to the accompanying drawings,and to letters of reference marked thereon, which form a partof thisspecification.

My invention relates to drying-machines, but more especially to thehorizontallymounted copper drying-cylinders'of such machines over whichWet fabrics or yarns are passed. The journals or trunnions of this classof revolving cylinders are usually hollow, one end being adapted toreceive steam under pressure,whence it passes into the cylinder andescapes as water or condensed steam through the opposite journal.

I am well aware that drying-cylinders have previously been provided withheads or ends having hollow trunnions or axles, through which latter thewater of condensation passes after being first collected and conductedthereto by buckets secured to the interior of the revolving cylinder.

The object I have in view is to produce a much lighter drying-cylinder.

To that end my invention consists, essentially, of a copper orothersuitable sheetmetal drying-cylinder having the ends thereof bentinwardly and forming integral flanges,

to which are bolted sheet or plate metal heads having each a chamberedmetallic center or journal portion, longitudinal braces or ties unitingsaid heads, and removable buckets secured to the discharge end of thecylinder, each bucket being duplex or divided longitudinally andprovided with a tube having its lower or inner end fitted into the saidchambered head, so as to allow the tube to freely larged. Fig. 3 is atransverse sectional view taken on line w w of Fig. 2. Fig. 4 is an endview.

My improved drying-cylinder as a whole is indicated by A. The endportion of the copper or sheet-metal barrel (1 is bent inwardly bysuitable means, thereby forming a comparatively-narrow integral flangea.

Each head portion of myimproved dryingcylinder consists of acomparativelythin annular disk-shaped piece 1), of suitable plate metal,as steel, to which is bolted a flanged cast-iron exterior center ortrunnion 0, its outer portion being reduced in diameter to form ajournal 0. I preferably provide the face of thetrunnion c with aprojecting peripheral flange arranged to fit the corresponding enlargedcenter hole 17 of the head disk I), bolts m, passing through the saidcenter head b, and a narrow annular flange p serving to rigidly securethe parts together. The trunnions care hollowthat is, they are providedeach with a central hole extending longitudinally through it, as clearlyrepresentedsteam being admitted into the cylinder at one end through thecorresponding trunnion and discharged therefrom at the opposite endthrough the other trunnion. The end flangesa' of the cylinder are eachbacked by an annular metallic plate e,between which and the head I) itis snugly clamped by a series of bolts m, the parts being suitablywashered or packed, so as to form steam-tight joints. The headsthemselves are braced bya series of tierods t, passing longitudinallythrough them, suitable nuts and washers being employed to retain them inplace and also to prevent leakage of steam, as clearly shown in Fig. 2.

The discharge end of the cylinder is as drawn provided with twooppositely-arranged buckets or scoops 5, each being provided with alongitudinal partition 8 thereby dividing the bucket into two parts. Thetwo ends of the bucket are closed. Each bucket is secured to the end orhead I) of the cylinder by means of the head-bolts m before described,the same also passing through the outer end 3 of the bucket. (See Figs.2 and 3.) By this arrangement it will be seen that rivets are dispensedwith, thereby avoiding leaky joints. The buckets, moreover, can bereadily removed when desired, a feature not common to cylinders asusually made. of the bucket is slightly concave and taperin g downwardlytoward the outer end thereof, at which point is centrally secured adrainage-tube f, the latter extending in a radial direction, its inneror lower end being so fitted into a hollow head or expansion chamber 1)as to permit the tube to freely expand and contract. This head isfurther provided with an enlarged flange p, by means of which, inconnection with the bolts m, the whole is firmly secured to thecorresponding or dis charge center 0. The head 19 is also provided witha transverse partition p thereby practically dividing the chamber andcausing the discharge water from each bucket to be deflected in turninto the trunnion. It will be seen that by this arrangement the bucketsmay be readily detached from the'cylinder, and by means of thecomparatively snug-fitting tubesf the latter are permitted to freelyexpand and contract without injury to themselves or to the cylinder.Another advantage resulting from my improved drying-cylinder is that itmay be mounted and revolved in either direction, as desired, withoutrearranging or adjusting the buckets.

In cylinders having a comparatively-large diameter I preferably provideone or both heads with manholes, substantially as indicated in Fig. 4 bythe dotted lines on. Cylinders of this class are usually provided withvacuum-valves which open inwardly and automatically in case a minuspressure be produced in the cylinder, thereby preventing the latter fromcollapsing. m, Fig. 4, indicates a valve of this character as common.

By means of myimprovcment it is obvious that the heads may be readilyremoved, as would be impossible in cylinders constructed as usual. Thecylinders also are very much lighter and at the same time stronger andare driven with less power. The buckets may at any time be easilyand'quiekly removed without injury to the barrel of the cylinder.

Assuming my improved drying-cylinder A to be mounted and drivensubstantially as common, the operation of the buckets, &C., will besubstantially as follows: Steam entersthe The lower siderevolvingcylinder through the left trunnion c, Fig. 2, the water of condensationpassing into the advancing open sides of the buckets; thence as thelatter pass upwardly past the horizontal center it flows therefromthrough the corresponding pipefinto the expansionchamber of the head 1),the partition 23 diverting the water into the discharge-tmnnion 0. (Seearrow direction.)

I claim as new and desire to secure by United States Letters Patent-- 1.The drying -cylinder,' substantially as hereinbefore described, the sameconsisting of the sheet metal barrel portion at having inturned ends orflanges a, outer and inner annular sheet metal plates 1), e, located ateach end of the cylinder having the said flanges a interposed betweenand rigidly secured to the said plates, hollow central trunnions securedto the said outer plates Z), tie-bolts or braces 6 extendinglongitudinally of the cylinder and uniting the heads, and buckets orscoops removably secured to the discharge end of the cylinder andcommunicating with the discharge trunnion thereof, substantially as setforth.

2. In a drying-cylinder, the combination of the oppositely arrangeddouble chambered buckets s removably secured to the cylinderhead,discharge tubesfleading from the buckets, and a double chambered centralhead member p communicating with the discharge trunnion having the innerends of said discharge tubes movably mounted in the head 12,substantially as and for the purpose set forth.

3. The combination, in a drying-cylinder constructed and arrangedsubstantially hereinbefore described, of longitudinally dividedremovably-secured buckets .s', and freely expanding discharge tubes funiting the buckets to a chambered head communicating with the dischargetrunnion.

In testimony whereof I have aflixed my signature in presence of twowitnesses.

GEORGE R. PHILLIPS,

Witnesses:

CHARLES HANNIGAN, Gno. II. REMINGTON.

